SSRF in Usememos Memos
CVE-2026-82476
Memos through 0.30.0 omits the 100.64.0.0/10 carrier-grade NAT address range from SSRF protection in its link-metadata fetcher, allowing unauthenticated attackers to bypass IP validation. Attackers can make the server request internal hosts in that range including cloud metadata services and read page titles and descriptions back.
Vulnerability class: SSRF (Server-Side Request Forgery)
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (issue-tracking)
- disclosure@vulncheck.com (technical-description)
- disclosure@vulncheck.com (product)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-82476?
- CVE-2026-82476 is a medium-severity vulnerability in Usememos Memos, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-08-29.
- How severe is CVE-2026-82476?
- Medium severity. CVSS v3 base score is 5.3 out of 10.